<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
  private $_id;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticateAdmin()
	{
		$users=array(
			// username => password
			'demo'=>'demo',
			'admin'=>'admin',
		);

    $record = Admin::model()->findByAttributes(array('username' => $this->username, 'password' => $this->password));
    // $admin = Admin::model()->find('username = :username AND password = :password', array(':username' => $this->username, ':password' => $this->password));

		if($record===null)
        $this->errorCode=self::ERROR_USERNAME_INVALID;
    else if($record->password!==$this->password)
        $this->errorCode=self::ERROR_PASSWORD_INVALID;
    else
    {
        $this->_id=$record->id;
        $this->setState('username', $record->username);
        $this->errorCode=self::ERROR_NONE;
    }
    return !$this->errorCode;
	}
}